Geobge m



(No Model.)

G. M. ROBISON.

CARPET STRETGHER.

No. 328,343. Patented Oct. 13, 1885.

ATTORNEYS.

UNITED STATES PATENT OFFICE.

GEORGE M. ROBISON, OF LEADVILLE, COLORADO- CARPET-STRETCH ER.

SPECIFICATION forming part of Letters Patent No. 328,343, dated October13, 1885.

Application filed October 14, 1884. Serial No. 145,458. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE M. ROBISON, of Leadville, in the county ofLake and State of Colorado, have invented a new and ImprovedCarpet-Stretcher, of which the following is a full, clear, and exactdescription.

The object of my invention is to provide a new and improved device tofacilitate the stretching of carpets and for holding the carpet whenstretched.

The invention consists of the combination of parts and theirconstruction, substantially as hereinafter fully set forth and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure 1 is a longitudinal sectional elevation of my improvedcarpetstretcher. Fig. 2 is a plan view of the same.

A plate, A, is provided with an upwardlyprojecting ridge, B, along theedge, and on a cross-piece, O, at the wider end of the plate, a seriesof teeth, D, are secured, which project from it and are bent down orotherwise so arranged that they will be but a very short distance abovethe bottom edge of the piece 0.

A strip, E, in front of the piece Ois hinged to the same byspring-hinges F, which throw the strip upward. When the strip E ispressed down, it is directly above the teeth D and in front of the piece0.

A flat bar, G, resting on the plate A and adapted to slide on the samein the direction of its length,is provided with rack-teeth in one sideedge, with which teeth a pawl-spring, H, secured on the plate A,engages.

Two upright inverted-V pieces,J are hinged to the plate A at their rearends, and have their front ends resting on the strip E, the said piecesJ being united by a handle, K. A pin, L, projects down from one end ofthe bar G.

The operation is as follows: The plateA is placed upon the carpet to bestretched and the pins or teeth D forced into the carpet. The pin L onthe bar G is forced into the floor and the pieces J pressed by means ofthe handle K upon the strip E. The plate A is then pushed toward the pinL, whereby the carpet is stretched. The plate A is locked in place onthe bar G by means of the spring or pawl H, and thus the carpet is heldstretched, so as to permit tacking it. The plate A is then unlocked fromthe bar G by disengaging the spring H from the teeth of the rack-bar Gand the plate A is pulled back to get a fresh grip, and so on.

WVhen the strip E is pressed on the teeth D, they cannot rip the carpet.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a carpet-stretcher, the combination, with the plate A, havingteeth D, of the swinging strip E above the teeth, the V-shaped pieces J,pivoted on the plate Aand resting on the strip E, and the handle K,uniting the pieces J, substantially as herein shown and described.

2. In a carpet-stretcher, the combination, with the plate A, havingteeth D, of the swinging strip E, the spring-hinges F, the V-shapedpieces J ,pivoted on the plateA and resting on the strip E, and thehandle K, uniting the pieces J, substantially as herein shown anddescribed.

3. In a carpet-stretcher, the combination, with a plate having teeth onits front edge, of a swinging piece above the teeth, a rack-bar restingon the plate and provided with apin on one end, a pawl-spring on theplate, and a handle-piece for moving the plate and pressing the swingingpiece upon the teeth, substantially as herein shown and described.

GEORGE M. EoBIsoN.

Witnesses:

Cans. I. SOHUMAGHER, ROBERT J. GRAHAM.

